000 00316nam a2200121Ia 4500
008 140317s9999 xx 000 0 und d
082 _a631.5
100 _aGupta,U.S.
245 _aPhysiological aspects of crop nutrition and resistance.
260 _aDelhi
_bAtma Ram , Sons
_c1977
300 _a383
942 _2ddc
_cBK
999 _c8044
_d8044